Odds Ratio

Odds ratio is the ration two different odds

Odds Ratio Formula

$\begin{aligned} Odds Ratio (A, B) & =\frac{O d d s_{A}}{O d d s_{B}} \\ =\frac{\frac{P (A)}{1 - P (A)}}{\frac{P (B)}{1 - P (B)}} \end{aligned}$

Ratio of two Odds; its log is Log (Odds Ratio).

References